diff --git a/erpnext/accounts/doctype/journal_entry/journal_entry.py b/erpnext/accounts/doctype/journal_entry/journal_entry.py
index 375d85d..face5ed 100644
--- a/erpnext/accounts/doctype/journal_entry/journal_entry.py
+++ b/erpnext/accounts/doctype/journal_entry/journal_entry.py
@@ -12,8 +12,8 @@
 from erpnext.hr.doctype.employee_loan.employee_loan import update_disbursement_status
 
 class JournalEntry(AccountsController):
-	def __init__(self, arg1, arg2=None):
-		super(JournalEntry, self).__init__(arg1, arg2)
+	def __init__(self, *args, **kwargs):
+		super(JournalEntry, self).__init__(*args, **kwargs)
 
 	def get_feed(self):
 		return self.voucher_type
diff --git a/erpnext/accounts/doctype/purchase_invoice/purchase_invoice.py b/erpnext/accounts/doctype/purchase_invoice/purchase_invoice.py
index a46c4b9..78c5682 100644
--- a/erpnext/accounts/doctype/purchase_invoice/purchase_invoice.py
+++ b/erpnext/accounts/doctype/purchase_invoice/purchase_invoice.py
@@ -22,8 +22,8 @@
 }
 
 class PurchaseInvoice(BuyingController):
-	def __init__(self, arg1, arg2=None):
-		super(PurchaseInvoice, self).__init__(arg1, arg2)
+	def __init__(self, *args, **kwargs):
+		super(PurchaseInvoice, self).__init__(*args, **kwargs)
 		self.status_updater = [{
 			'source_dt': 'Purchase Invoice Item',
 			'target_dt': 'Purchase Order Item',
diff --git a/erpnext/accounts/doctype/sales_invoice/sales_invoice.py b/erpnext/accounts/doctype/sales_invoice/sales_invoice.py
index 7a787c4..6ab6148 100644
--- a/erpnext/accounts/doctype/sales_invoice/sales_invoice.py
+++ b/erpnext/accounts/doctype/sales_invoice/sales_invoice.py
@@ -27,8 +27,8 @@
 }
 
 class SalesInvoice(SellingController):
-	def __init__(self, arg1, arg2=None):
-		super(SalesInvoice, self).__init__(arg1, arg2)
+	def __init__(self, *args, **kwargs):
+		super(SalesInvoice, self).__init__(*args, **kwargs)
 		self.status_updater = [{
 			'source_dt': 'Sales Invoice Item',
 			'target_field': 'billed_amt',
diff --git a/erpnext/accounts/party.py b/erpnext/accounts/party.py
index 69f40f8..bcec0a2 100644
--- a/erpnext/accounts/party.py
+++ b/erpnext/accounts/party.py
@@ -68,7 +68,8 @@
 	billing_address_field = "customer_address" if party_type == "Lead" \
 		else party_type.lower() + "_address"
 	out[billing_address_field] = get_default_address(party_type, party.name)
-	out.update(get_fetch_values(doctype, billing_address_field, out[billing_address_field]))
+	if doctype:
+		out.update(get_fetch_values(doctype, billing_address_field, out[billing_address_field]))
 
 	# address display
 	out.address_display = get_address_display(out[billing_address_field])
@@ -77,7 +78,8 @@
 	if party_type in ["Customer", "Lead"]:
 		out.shipping_address_name = get_default_address(party_type, party.name, 'is_shipping_address')
 		out.shipping_address = get_address_display(out["shipping_address_name"])
-		out.update(get_fetch_values(doctype, 'shipping_address_name', out.shipping_address_name))
+		if doctype:
+			out.update(get_fetch_values(doctype, 'shipping_address_name', out.shipping_address_name))
 
 	if doctype and doctype in ['Delivery Note', 'Sales Invoice']:
 		out.update(get_company_address(company))
diff --git a/erpnext/buying/doctype/purchase_order/purchase_order.py b/erpnext/buying/doctype/purchase_order/purchase_order.py
index e2f5a9d..36cef43 100644
--- a/erpnext/buying/doctype/purchase_order/purchase_order.py
+++ b/erpnext/buying/doctype/purchase_order/purchase_order.py
@@ -20,8 +20,8 @@
 }
 
 class PurchaseOrder(BuyingController):
-	def __init__(self, arg1, arg2=None):
-		super(PurchaseOrder, self).__init__(arg1, arg2)
+	def __init__(self, *args, **kwargs):
+		super(PurchaseOrder, self).__init__(*args, **kwargs)
 		self.status_updater = [{
 			'source_dt': 'Purchase Order Item',
 			'target_dt': 'Material Request Item',
diff --git a/erpnext/controllers/accounts_controller.py b/erpnext/controllers/accounts_controller.py
index a9677b0..4f49c77 100644
--- a/erpnext/controllers/accounts_controller.py
+++ b/erpnext/controllers/accounts_controller.py
@@ -15,8 +15,8 @@
 force_item_fields = ("item_group", "barcode", "brand", "stock_uom")
 
 class AccountsController(TransactionBase):
-	def __init__(self, arg1, arg2=None):
-		super(AccountsController, self).__init__(arg1, arg2)
+	def __init__(self, *args, **kwargs):
+		super(AccountsController, self).__init__(*args, **kwargs)
 
 	@property
 	def company_currency(self):
diff --git a/erpnext/controllers/buying_controller.py b/erpnext/controllers/buying_controller.py
index 9cc0616..1f9051d 100644
--- a/erpnext/controllers/buying_controller.py
+++ b/erpnext/controllers/buying_controller.py
@@ -61,7 +61,7 @@
 
 		# set contact and address details for supplier, if they are not mentioned
 		if getattr(self, "supplier", None):
-			self.update_if_missing(get_party_details(self.supplier, party_type="Supplier", ignore_permissions=self.flags.ignore_permissions))
+			self.update_if_missing(get_party_details(self.supplier, party_type="Supplier", ignore_permissions=self.flags.ignore_permissions, doctype=self.doctype, company=self.company))
 
 		self.set_missing_item_details(for_validate)
 
diff --git a/erpnext/controllers/selling_controller.py b/erpnext/controllers/selling_controller.py
index d881f18..c1028a5 100644
--- a/erpnext/controllers/selling_controller.py
+++ b/erpnext/controllers/selling_controller.py
@@ -49,7 +49,8 @@
 		if getattr(self, "customer", None):
 			from erpnext.accounts.party import _get_party_details
 			party_details = _get_party_details(self.customer,
-				ignore_permissions=self.flags.ignore_permissions)
+				ignore_permissions=self.flags.ignore_permissions,
+				doctype=self.doctype, company=self.company)
 			if not self.meta.get_field("sales_team"):
 				party_details.pop("sales_team")
 
diff --git a/erpnext/selling/doctype/installation_note/installation_note.py b/erpnext/selling/doctype/installation_note/installation_note.py
index 720247d..9f730f4 100644
--- a/erpnext/selling/doctype/installation_note/installation_note.py
+++ b/erpnext/selling/doctype/installation_note/installation_note.py
@@ -12,8 +12,8 @@
 from erpnext.utilities.transaction_base import TransactionBase
 
 class InstallationNote(TransactionBase):
-	def __init__(self, arg1, arg2=None):
-		super(InstallationNote, self).__init__(arg1, arg2)
+	def __init__(self, *args, **kwargs):
+		super(InstallationNote, self).__init__(*args, **kwargs)
 		self.status_updater = [{
 			'source_dt': 'Installation Note Item',
 			'target_dt': 'Delivery Note Item',
diff --git a/erpnext/selling/doctype/quotation/quotation.py b/erpnext/selling/doctype/quotation/quotation.py
index 1cdd840..f0cce5f 100644
--- a/erpnext/selling/doctype/quotation/quotation.py
+++ b/erpnext/selling/doctype/quotation/quotation.py
@@ -32,7 +32,7 @@
 		self.validate_valid_till()
 		if self.items:
 			self.with_items = 1
-
+			
 	def validate_valid_till(self):
 		if self.valid_till and self.valid_till < self.transaction_date:
 			frappe.throw(_("Valid till date cannot be before transaction date"))
@@ -79,15 +79,10 @@
 		else:
 			frappe.throw(_("Cannot set as Lost as Sales Order is made."))
 
-	def check_item_table(self):
-		if not self.get('items'):
-			frappe.throw(_("Please enter item details"))
-
 	def on_submit(self):
-		self.check_item_table()
-
 		# Check for Approving Authority
-		frappe.get_doc('Authorization Control').validate_approving_authority(self.doctype, self.company, self.base_grand_total, self)
+		frappe.get_doc('Authorization Control').validate_approving_authority(self.doctype,
+			self.company, self.base_grand_total, self)
 
 		#update enquiry status
 		self.update_opportunity()
diff --git a/erpnext/selling/doctype/sales_order/sales_order.py b/erpnext/selling/doctype/sales_order/sales_order.py
index 8720482..613b0bb 100644
--- a/erpnext/selling/doctype/sales_order/sales_order.py
+++ b/erpnext/selling/doctype/sales_order/sales_order.py
@@ -22,8 +22,8 @@
 class WarehouseRequired(frappe.ValidationError): pass
 
 class SalesOrder(SellingController):
-	def __init__(self, arg1, arg2=None):
-		super(SalesOrder, self).__init__(arg1, arg2)
+	def __init__(self, *args, **kwargs):
+		super(SalesOrder, self).__init__(*args, **kwargs)
 
 	def validate(self):
 		super(SalesOrder, self).validate()
diff --git a/erpnext/setup/doctype/email_digest/email_digest.py b/erpnext/setup/doctype/email_digest/email_digest.py
index c85a541..8d1fb3d 100644
--- a/erpnext/setup/doctype/email_digest/email_digest.py
+++ b/erpnext/setup/doctype/email_digest/email_digest.py
@@ -16,14 +16,13 @@
 
 from frappe.model.document import Document
 class EmailDigest(Document):
-	def __init__(self, arg1, arg2=None):
-		super(EmailDigest, self).__init__(arg1, arg2)
+	def __init__(self, *args, **kwargs):
+		super(EmailDigest, self).__init__(*args, **kwargs)
 
 		self.from_date, self.to_date = self.get_from_to_date()
 		self.set_dates()
 		self._accounts = {}
-		self.currency = frappe.db.get_value("Company", self.company,
-			"default_currency")
+		self.currency = frappe.db.get_value("Company", self.company, "default_currency")
 
 	def get_users(self):
 		"""get list of users"""
diff --git a/erpnext/stock/doctype/delivery_note/delivery_note.py b/erpnext/stock/doctype/delivery_note/delivery_note.py
index f5a99af..dd00398 100644
--- a/erpnext/stock/doctype/delivery_note/delivery_note.py
+++ b/erpnext/stock/doctype/delivery_note/delivery_note.py
@@ -21,8 +21,8 @@
 }
 
 class DeliveryNote(SellingController):
-	def __init__(self, arg1, arg2=None):
-		super(DeliveryNote, self).__init__(arg1, arg2)
+	def __init__(self, *args, **kwargs):
+		super(DeliveryNote, self).__init__(*args, **kwargs)
 		self.status_updater = [{
 			'source_dt': 'Delivery Note Item',
 			'target_dt': 'Sales Order Item',
diff --git a/erpnext/stock/doctype/purchase_receipt/purchase_receipt.py b/erpnext/stock/doctype/purchase_receipt/purchase_receipt.py
index 2d089c4..e49f993 100644
--- a/erpnext/stock/doctype/purchase_receipt/purchase_receipt.py
+++ b/erpnext/stock/doctype/purchase_receipt/purchase_receipt.py
@@ -19,8 +19,8 @@
 }
 
 class PurchaseReceipt(BuyingController):
-	def __init__(self, arg1, arg2=None):
-		super(PurchaseReceipt, self).__init__(arg1, arg2)
+	def __init__(self, *args, **kwargs):
+		super(PurchaseReceipt, self).__init__(*args, **kwargs)
 		self.status_updater = [{
 			'source_dt': 'Purchase Receipt Item',
 			'target_dt': 'Purchase Order Item',
diff --git a/erpnext/stock/doctype/serial_no/serial_no.py b/erpnext/stock/doctype/serial_no/serial_no.py
index c39efa0..80c93ef 100644
--- a/erpnext/stock/doctype/serial_no/serial_no.py
+++ b/erpnext/stock/doctype/serial_no/serial_no.py
@@ -20,8 +20,8 @@
 class SerialNoDuplicateError(ValidationError): pass
 
 class SerialNo(StockController):
-	def __init__(self, arg1, arg2=None):
-		super(SerialNo, self).__init__(arg1, arg2)
+	def __init__(self, *args, **kwargs):
+		super(SerialNo, self).__init__(*args, **kwargs)
 		self.via_stock_ledger = False
 
 	def validate(self):
diff --git a/erpnext/stock/doctype/stock_reconciliation/stock_reconciliation.py b/erpnext/stock/doctype/stock_reconciliation/stock_reconciliation.py
index 360ebca..0f91e43 100644
--- a/erpnext/stock/doctype/stock_reconciliation/stock_reconciliation.py
+++ b/erpnext/stock/doctype/stock_reconciliation/stock_reconciliation.py
@@ -14,8 +14,8 @@
 class EmptyStockReconciliationItemsError(frappe.ValidationError): pass
 
 class StockReconciliation(StockController):
-	def __init__(self, arg1, arg2=None):
-		super(StockReconciliation, self).__init__(arg1, arg2)
+	def __init__(self, *args, **kwargs):
+		super(StockReconciliation, self).__init__(*args, **kwargs)
 		self.head_row = ["Item Code", "Warehouse", "Quantity", "Valuation Rate"]
 
 	def validate(self):